GB1424558A - Leaf spring scale - Google Patents

Leaf spring scale

Info

Publication number
GB1424558A
GB1424558A GB5942373A GB5942373A GB1424558A GB 1424558 A GB1424558 A GB 1424558A GB 5942373 A GB5942373 A GB 5942373A GB 5942373 A GB5942373 A GB 5942373A GB 1424558 A GB1424558 A GB 1424558A
Authority
GB
United Kingdom
Prior art keywords
spring
load
frame
movable frame
scale
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5942373A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pitney Bowes Inc
Original Assignee
Pitney Bowes Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pitney Bowes Inc filed Critical Pitney Bowes Inc
Publication of GB1424558A publication Critical patent/GB1424558A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
    • G01G23/32—Indicating the weight by optical projection means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/08—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a leaf spring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Projection Apparatus (AREA)

Abstract

1424558 Spring balance PITNEY-BOWES Inc 21 Dec 1973 [26 Dec 1972] 59423/73 Heading G1W A spring balance comprises a fixed frame 40, a movable frame 17 carrying a load platform 18, a pair of parallel leaf springs connecting the frames and arranged such that the no-load full-load positions of the movable frame are in a common vertical plane a first adjustable spring 46 for setting the zero, and a second adjustable spring 58 for setting the full load position of the movable frame the second spring 58 being anchorable to the fixed frame at any point along a curve which is such that the consequent spring length and inclination will produce the same biasing force on the movable frame in the mid range position. The leaf springs 20, 22 effectively bend about areas 76, 76, and the fixed frame 40 is inclined at an angle # to the vertical such that at the midrange position the ends 80, 80' of the springs 20, 22 are in the same horizontal planes as the axes 76, 76' (Fig. 3), the no-load and full-load position of the ends 80, 80' being equal distances above and below the mid-range positions. The spring 20, 22 are clamped to the frames 17, 40 by aluminium C shaped clamping bars 92, 92', and movement of frame 17 is clamped at 41. The second spring 58 is anchored to the balance frame by means of a bolt 63 engaging in a slot 66 in an upright 62. Deflection of the movable frame 17 is indicated by means a transparent scale 30 carried on an arm 26 connected to frame 17, and an optical projection system for projecting the scale 30 on to a screen 38. The light beam of the optical system is arranged to pass the scale 30 at the point of intersection of axes 150, 158 (Fig. 6) about which the movable frame effectively pivots as a load is moved side to side and back to front respectively on the platform whereby errors due to load positioning are minimized. The biasing force produced by the spring 58 on the mid-range position may be compensated for by the fabrication of the scale 30.
GB5942373A 1972-12-26 1973-12-21 Leaf spring scale Expired GB1424558A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00318546A US3807517A (en) 1972-12-26 1972-12-26 Leaf spring scale

Publications (1)

Publication Number Publication Date
GB1424558A true GB1424558A (en) 1976-02-11

Family

ID=23238636

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5942373A Expired GB1424558A (en) 1972-12-26 1973-12-21 Leaf spring scale

Country Status (9)

Country Link
US (1) US3807517A (en)
JP (1) JPS5610572B2 (en)
BE (1) BE808183A (en)
BR (1) BR7309952D0 (en)
CA (1) CA993461A (en)
DE (1) DE2363769C2 (en)
FR (1) FR2211647B1 (en)
GB (1) GB1424558A (en)
NL (1) NL182174C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139077A (en) * 1983-05-05 1984-11-07 Charles Scott Cover member for a cooking vessel

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894593A (en) * 1973-10-18 1975-07-15 Reliance Electric Co Weighing scale
CH573103A5 (en) * 1973-11-16 1976-02-27 Wirth Gallo & Co
US3917012A (en) * 1974-06-05 1975-11-04 Pitney Bowes Inc High speed weighing scale
NL7701006A (en) * 1976-02-05 1977-08-09 Pitney Bowes Inc WEIGHING SYSTEM.
US4022288A (en) * 1976-02-27 1977-05-10 Pitney-Bowes, Inc. Series twin leaf spring weighing scale
US4071104A (en) * 1976-10-26 1978-01-31 Pitney-Bowes, Inc. Scale adjustment device
US4300645A (en) * 1979-10-09 1981-11-17 Sly Eugene L Weighing scale for small loads
US4433742A (en) * 1981-05-19 1984-02-28 Setra Systems, Inc. Linear motion linkage
JPS5869239U (en) * 1981-11-05 1983-05-11 株式会社タニタ leaf spring scale
CN103459991A (en) 2011-01-31 2013-12-18 维泰克实验室技术股份有限公司 Bottle dispenser having a digital volume display
US20140002642A1 (en) 2012-06-15 2014-01-02 Elmar SWIEGOT Absolute position detection
CN110697101B (en) * 2019-10-21 2021-06-01 常州中科绿塑环保科技有限公司 Conductive easily-degradable plastic particle subpackaging and adjusting equipment

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1052721A (en) * 1900-01-01
CH167550A (en) * 1933-03-27 1934-02-28 E & H Ryser Household scales.
FR1077981A (en) * 1952-06-04 1954-11-15 Spring balance for dosing or quick checks in series
US2793026A (en) * 1953-06-24 1957-05-21 Giardino Loris Spring balance for rapid continuous dosing or controlling
US3042128A (en) * 1957-05-08 1962-07-03 Toledo Scale Corp Condition responsive device with motion detecting means
CH357208A (en) * 1958-04-02 1961-09-30 Mettler E Fabrik Fuer Analysenwaagen Spring balance
US3047084A (en) * 1959-08-17 1962-07-31 Vogel & Halke Spring balance or weighing device
GB1133985A (en) * 1965-01-19 1968-11-20 Hollands And Blair Ltd Improvements in weighing scales
US3550703A (en) * 1968-10-24 1970-12-29 Sartorius Werke Gmbh Weighing machine which gives a signal when a specific position of measuring is exceeded
FR1602088A (en) * 1968-12-19 1970-10-05
GB1263182A (en) * 1969-03-07 1972-02-09 Avery Ltd W & T Improvements in weighing apparatus
CH510868A (en) * 1970-02-06 1971-07-31 Domestic Scale Distrib S A Balance
US3656569A (en) * 1970-09-22 1972-04-18 Clarence Johnson Weighing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139077A (en) * 1983-05-05 1984-11-07 Charles Scott Cover member for a cooking vessel

Also Published As

Publication number Publication date
CA993461A (en) 1976-07-20
DE2363769A1 (en) 1974-06-27
FR2211647B1 (en) 1979-01-26
FR2211647A1 (en) 1974-07-19
BR7309952D0 (en) 1974-08-15
JPS5610572B2 (en) 1981-03-09
US3807517A (en) 1974-04-30
NL182174B (en) 1987-08-17
NL182174C (en) 1988-01-18
BE808183A (en) 1974-03-29
NL7317689A (en) 1974-06-28
JPS4998273A (en) 1974-09-17
DE2363769C2 (en) 1986-03-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee